<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>支付表单【只要注意表单提交地址】</h1>
<div>
    <form action="/pay/alipay/alipay.trade.page.pay" method="post">
        订单号：<input type="text" name="WIDout_trade_no" th:value="${tradeId}"/><br/>
        商品名：<input type="text" name="WIDsubject" th:value="${tradeName}"/><br/>
        价格：<input type="text" name="WIDtotal_amount" th:value="${tradeMoney}"/><br/>
        描述：<input type="text" name="WIDbody" th:value="${tradeDesc}"/><br/>
        <button type="submit">去支付</button>
    </form>
</div>
</body>
</html>